9902.03.24 - 1-Ethoxy-1-oxo-2-propanyl 5-[2-chloro-4-(trifluoromethyl)phenoxy]-2-nitrobenzoate (Lactofen) (CAS No. 77501-63-4) (provided for in subheading 2918.99.20)

This HTS code, 9902.03.24, specifically classifies Lactofen, identified by its chemical name 1-Ethoxy-1-oxo-2-propanyl 5-[2-chloro-4-(trifluoromethyl)phenoxy]-2-nitrobenzoate and CAS Number 77501-63-4. This provision falls under Chapter 99, which pertains to temporary legislation and modifications. Its inclusion here indicates a specific, likely temporary, regulatory treatment for this chemical compound, which is otherwise provided for under subheading 2918.99.20.

Distinguishing this code from its sibling categories within the broader HTS structure, such as those for live animals (0101-0105), is straightforward. While those categories deal with live farm animals, 9902.03.24 is dedicated solely to a specific, manufactured chemical substance. The "provided for in subheading 2918.99.20" clause is crucial, signifying that Lactofen's primary classification is as an organic chemical compound, but this 9900-series code imposes an additional, specific tariff or regulatory measure.

As this is a leaf node, there are no further subcategories. Classification under 9902.03.24 is therefore definitive for Lactofen when imported under the conditions stipulated by the temporary legislation or trade agreement modification it represents. Importers must adhere to any specific documentation, quantity limits, or duty rates associated with this particular HTS code to ensure compliance.